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Finding the Fourth Proportional to 11,253.70, 16,880.73 and 2,933.20

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Solution

The fourth proportional to 11,253.70, 16,880.73 and 2,933.20 is: 4,399.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,253.70 : 16,880.73 = 2,933.20 : x
  2. Step 2: Convert to fraction form
    11,253.70/16,880.73 = 2,933.20/x
  3. Step 3: Cross multiply
    11,253.70x = 16,880.73 × 2,933.20
  4. Step 4: Simplify right side
    11,253.70x = 49,514,557.24
  5. Step 5: Solve for x
    x = 49,514,557.24/11,253.70
  6. Step 6: Final answer
    x = 4,399.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.